WUFI

Michael,
Where did you find the weather data that you used for the spreadsheet? I'm also trying to find data for cities that WUFI does not already have .wac files for.

I have wall system with 2 wythes of wood studs with an airspace in between. The studs are sheathed with gyp sheathing and stucco at the exterior and gypboard at the interior. Is there a way to model the wall so that the airspace between the studs is kept at a constant 67F and 55% RH? The airspace wi...

Is there a material in the WUFI 4.1 database that's equivalent to a 0.045 mil or 0.060 mil EPDM roof membrane (built-up roof)?

thanks, manfred. I will take a look at the moisture storage function.

Hi Manfred,

If there's no condensation, how does the water content in the material go up? How can I find out the paramenters of what's bad for materials like the 95% for wood, etc.? And how long does the 95% have to be sustained to be a problem?
Thanks.
Serene

I ran WUFI for a wall section of brick, air layer, vapor retarder, gypsum sheathing, batt insulation, and interior sheathing. In the quick graphs, the temperature and dew point lines appear to be overlapping at several positions in the all of the layers. However, if I zoom in very closely, the lines...

At a WUFI class, we were informed that using ASHRAE 160P for the indoor climate is the most accurate option in WUFI 4.1. Could someone give a little crash course on all the variables that i can input in this screen? Such as the floating indor temp shift, set point for heating, moisture generation ra...